In the Linux kernel, the following vulnerability has been resolved:

ipvs: use parsed transport offset in TCP state lookup

TCP state handling reparses the skb to find the TCP header. For IPv6 it
uses sizeof(struct ipv6hdr), while the surrounding IPVS code already
parsed the packet with ip_vs_fill_iph_skb() and has the real
transport-header offset in iph.len.

This makes TCP state handling look at the wrong bytes when an IPv6
packet carries extension headers. Use the parsed transport offset passed
down from ip_vs_set_state() when reading the TCP header.

For IPv4 and for IPv6 packets without extension headers, the passed
offset matches the previous value.

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux Subscribe
Linux Kernel Subscribe

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/2500fa3958b1ba51c2b065e39db1b04dfa7e23a2 cve-icon cve-icon
https://git.kernel.org/stable/c/2d06e0897ce18228d199887f0823b431d841dd03 cve-icon cve-icon
https://git.kernel.org/stable/c/5848e914b85e360a2dd9d19c00a72e2ea9617dd0 cve-icon cve-icon
https://git.kernel.org/stable/c/816efb7fc0aeae986e63ac73b428dd97a4ef69f5 cve-icon cve-icon
https://git.kernel.org/stable/c/c2ee845e292c278fac75bf28d96bc892607fd5c4 cve-icon cve-icon
https://git.kernel.org/stable/c/d45f73c274435703e8d7bc9d8b742a5d9111ab6e cve-icon cve-icon
https://git.kernel.org/stable/c/d73f4249776dd970ad65a69cfc51613dd8a034bb cve-icon cve-icon
https://git.kernel.org/stable/c/f6f550f26562d191c30b2818e7925dcb1c7f166c cve-icon cve-icon
History

Fri, 04 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125

Fri, 04 Sep 2026 17:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: ipvs: use parsed transport offset in TCP state lookup TCP state handling reparses the skb to find the TCP header. For IPv6 it uses sizeof(struct ipv6hdr), while the surrounding IPVS code already parsed the packet with ip_vs_fill_iph_skb() and has the real transport-header offset in iph.len. This makes TCP state handling look at the wrong bytes when an IPv6 packet carries extension headers. Use the parsed transport offset passed down from ip_vs_set_state() when reading the TCP header. For IPv4 and for IPv6 packets without extension headers, the passed offset matches the previous value.
Title ipvs: use parsed transport offset in TCP state lookup
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-09-04T16:48:48.307Z

Reserved: 2026-08-26T14:34:25.798Z

Link: CVE-2026-80875

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-04T17:16:59.507

Modified: 2026-09-04T17:16:59.507

Link: CVE-2026-80875

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-04T21:15:05Z

Weaknesses